Double suction-cup.



C. M. WOLCOTT.

DOUBLE SUCTION CUP.

APPLICATION FILED JULY 19. I918.

1,298, 1 39. I Patented Mar. 25, 1919.

Wiineoow a rs a OFFIQ.

CHARLES M. WOLCOTT, OF NEW YORK, N. Y., ASSIGNOR OF THREE-FO'O'RTHS TOSAMUEL MYERBERG- AND ISIDOR MYERBERG, BOTH 0F BALTIMORE, MARY- LAND.

DOUBLE SUCTION-CUP.

Specification of Letters Iatent.

Application filed July 19, 1818. Serial No. 245,668.

To all whom it may concern:

Be it known that I, CHARLES M. WOLCOTT, a citizen of the United States,residing at New York city and State of New York, have invented certainnew and useful Improvements in Double Suction-Cups, of which thefollowing is a specification.

This invention relates, to suction or vacuum cups designed forsupporting brackets to a wall or other smooth surface without the use ofnails, screws or other fastening means, and its object is to provide anovel and improved device of this kind which will obtain a strong holdon the surface, the cup being provided with an auxiliar cup by which theholding power is materially increased.

In order that the invention may be better understood, reference is hadto the accompanying drawing forming a part of this specification, and insaid drawing Figure 1 is an end view of the device and Fig. 2 is acentral longitudinal section thereof,

Referring specifically to the drawing, 5

denotes a suction cup of rubber or other.

flexible material having a flat rim so that it may fit snugly' against awall or other smooth supporting surface. The cup is applied to the wallor other surface by pressing its open end thereagainst, whereupon itspreads or becomes distended as shown dotted in Fig. 2, producing apartial vacuum in the cup, so that the atmospheric pressure on its outersurface holds it in place, and

1 no fastening means such as nails, screws, etc.,

are required. As this function of the cup is well known, a furtherdescription thereof is not necessary.

In order that the cup may obtain a more secure hold, it, is provided onthe inside with an. auxiliary suction cup 6, the mouth of which faces inthe same direction as the main cup but is located a short distanceinward of the latter as shown in Fig. 2. The two cups are formedintegral, and the device can therefore be easily and cheaply produced.

The auxiliary cup 6 is also flexible so that it may become distendedwhen its mouth is pressed against the supporting surface, and as it isback of the mouth of the main cup,

the latter is first distended, and when the mouth thereof and locatedinward of said mouth, and a solid base from one side of which the cupsproject in concentric and spaced relation.

In test mony whereof I afiix my signature in the presence of twowitnesses.

CHARLES M. woLooTT.

Witnesses:

HOWARD D. ADAMS, HOWARD G. CLARK.

Patented Mar. 25, 1919.

